Mexico City (CDMX), a metro area of ~22 million, faces interconnected megacity challenges:
High altitude (2,240 m) + thermal inversion + 5M+ vehicles + industrial emissions = chronic ozone and PM2.5 exceedances. Linked to respiratory/cardiovascular disease. Programs: Hoy No Circula (driving restrictions), Metrobús BRT, EV incentives, refinery closure—but progress is slow.
Consistently ranked among world's most congested cities (TomTom, INRIX). Average commuter loses 150+ hrs/year. Causes: radial highway design, insufficient transit coverage (metro serves <20% of trips), informal settlements far from jobs. New lines (Line 12 extension, Suburban Rail) help but lag demand.
High rates of robbery, assault, homicide, femicide. Cartel presence (Jalisco New Generation, Unión Tepito) fuels extortion, kidnapping, retail drug trade. Impunity >90% erodes trust. Tourist areas heavily policed; peripheries bear the brunt.
~40% of metro population in poverty (CONEVAL). Informal settlements (colonias populares) lack water, sanitation, tenure. Spatial segregation: wealthy west/southwest (Polanco, Santa Fe) vs. poor east/north (Iztapalapa, Gustavo A. Madero).
Endemic in police, judiciary, permitting, procurement. "Mordida" (bribe) culture persists. Undermines all other reforms. National Anti-Corruption System (2016) has limited teeth.
Water scarcity (aquifer overdraft, subsidence up to 30 cm/yr), seismic risk (1985, 2017 quakes), governance fragmentation (16 alcaldías + state + federal).
Addressing these requires sustained investment, metropolitan coordination, and political will—scarce commodities in a 6-year electoral cycle.